Ajuste de controlador PID por método de autossintonia baseado em estimativa de robustez
This work proposes a autotuning method of PID controllers, in order to guarantee robustness to the system, being implemented in Programmable Logic Controller (PLC) through relay experiments, with the possibility of being applied in PI-D controllers. The autotuning method proposed was developed th...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
| Publicado em: |
Brasil
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/27647 |
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| Resumo: | This work proposes a autotuning method of PID controllers, in order to guarantee
robustness to the system, being implemented in Programmable Logic Controller (PLC)
through relay experiments, with the possibility of being applied in PI-D controllers. The
autotuning method proposed was developed through the adaptation of methods directed
to existing PI controllers, with the objective of using few iterative structures, allowing the
implementation in PLC, as well as improving the performance in the transient response
of the system. Robustness is obtained by the maximum sensitivity of the system. Relay experiments provide frequency response points that allow calculation of parameters
that modify the original terms of the controller in order to remove the points from the
interior of the maximum sensitivity circle. Results of two PLC applications of different
didactic systems allowed comparison with an existing PI controller tuning method and the
demonstration of the effectiveness of the method. |
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